Autotruck.



1. H. AUFDER HAAR.

Patented Feb. 'IIL 3 SHEETS-8AM 2v J. H. AUFDER HAAR.

AUTOTRUCK.

APPLICATION FILED APR.29,1915.

Patented Fol. r. IJf

J SHLU UT 1. H. AUFDER HAAR.

AuoTRucK.

APPLICATION HLED APR. 29.1915- 1 171,043. Patented Feb. 8,1916.

3 SHEETS-SHET 3.

UNITED STATES P'fi.

:err @einen JOHN 1'1". AUFDER H'AR, (JF CHICGO, ILLXNGIS.

vcounty of Cookend State of Illinois, have invented a certain new :and usefu improveinnt'inAi'itotrucks; and I do hereby (tenia re that'theoiowi'ng description of my 'said invention, taken in' -connection with the ae eompiinying Sheets of fhiiwings, forms z1- fnli, Clear, undernet specification, which will ena'bi'e others skilled in thenr'tt tn which it zip'llertains; to make und use the seine.

My invention relates generaliy to iniprovem'ents .in nuto trucks and it consists, essentially' in the novel aand pccniier com hination 'of parte and details of construe tion. as' hereinafter first fully set forth and l described and then pointed out in the claims; In the drawings already .referred to, which describe my invention more uiijs, Figure `1 is n plnnfof my newly invented autotruek. Fig. 2 is .1 vertical, iongitud nai sectionkthereof, in line 2 2 of Fig. Fig. 3 it transverse, vertical section in line 9i-w3 of'Fiff. 2. Fig. fi is a front eeva-4 tion of my dece. Fig. 5 is a. rear elevation thereof. Fig. 6 is u vertical, longitudinal seetionof the engine supporting mechanism, und Fig. 7 is aV section of n' modified form of support vfor the front nxie. Fig. S is :i renr elevation of n modified type of censtruction of the rear axle, c'liierentini box.

und brackets. therefor. Fig. 9 if; :i Qian of the set colhir employed 1n: conne-enfui with sind rear nxie. and Fig. l0 is njrertien.' section thereof as empioyeii in' the .suif nite.

the hitter i'einf; in fragmentary intim.

Like parte. :ire indicated 'by' corresmicid ing character or ihols of reference in nl the igures at the drm rings.

in the construction of' ini t1-neit. empioy n phlrriity of new und novel features, prohe :i11;i\e'\\ and useful resizitswhich tenti 5C increase th'` life und (fthe-:ener of such nien# tionet'i Yehiiies. in the first' pinne, he. rhnssisof njv' trnrit rigidly mounted to the renrnXie hearings :and they in' turn, nre positirei'y fixedgto `both the Chassis and to h, wherebyf the rear end of theI Vehicle. is prnctirniy iz rigid structure. und not .liable to vibrations Connected with the automobile ofthe ai-resent day. The front end of the chess s. is sun ported centr-(illy of its width. by means of an osciiutnhle blade spring oi' eiiiptieai Speecation of 'Letters atent.

` Application ned prix 29. m15.

' Feitented Feh- $1.91 6.

serial nt. 24,770.

type, fastened to the nxie, parallelto thiA iront end of said ehasslssothat shouln either of the front wheels dropfmto n rut.- or any depression ofthe road, thev forward end of the chassis Wiil stlii remain in a hori z nntal piane, by reason of the fact that. the

frontnxle and wheeis may oseillateupon si eentra support.. 5 y Another importent feature of vnfiy'devi' 6 that the engine is suspended indepem-v Y' enty and yieidingiy from the Chassis itself. so. that no matter what vibrationxmay exit in the chassis, either vertieaiiy, transfverseiy, iongitudizisliy, the engine itself 7i Wiii not is suhieetei to any strains other than that of the propuisive power. On motor trucks in generai, as is Welt known, the chassis is spring mounted et' four points, and the chassis itself vibratie 7 5 upwardly and downwardijg'a'terfdly and i inngi'tigdiney, hiring vits ceurse of prog n a. like manner theengine vibraties, and es the frame at times is distorted, -an enormous amount of friction is created in 8L "iheengine. it' is, this unnessary yielding vibnition the chassis, that I wish te over# come, und ntfA the sinne` time. Wish to so tie-. my sus ension frame for the engine Lilith-' the motor enzihiec tio direct its fnii Owen '2 31, thereof. to the trauern' sion of the' vehicle,V

To better miderste =d my invention, I li/ iH- 0 to Ai draw in which A. Fig.

" whoie. anti 1.0 anrifi .It Winger the nuto :iii-ei, but ai'. mnie, new begin to dizoper separa 95 iefront end together ,9; pzwviection iff, ten in;

The front axle 19 of any typical-construction, as are steeringknuckles 21 and 22l at either end thereof, whereon are the steering ends 2&5' and 24, carrying the front wheels 25 and 26. It lwill now Ibeobserved that were the truck in forward motion, there would be a backward force with respect to axle 19, spring 17 and the wheels. In order to prevent the backward force, as it were, I provide two side rods 27 and 28 fastened st one end to either side of the chassis, a `sufficient distance back from the end. thereof, and

`1 fas-tened with their other end 'tothe axle 19,

as clearly seen in `Fi 4, these rods 27 and y' 28 are fixed tothe sides of the chassis quite a distance from the front thereof, and rather a loose fit at thechassis and laxle-as' well, so that as the axle vibrates laterally,

the elongation or'shorteniu'g' 'ofthe rod will have no effect. upon the 'operation of the mechanism described.

It will now be observed that the chassis is suspended, ratherV 4spring suspended, centrally of its width" at the forward end and it should be further observed; that as one of the wheels enters a'depression or as the other wheel overcomes an obstruction on the road, the plane of the frontend Aof the chassis will remain horizontal. 'The steering mechanism actuating th frontwheels for.purposes offsteeringgzi of the usual class, and need not be furtherdescribedin .this specifi- Locatedibetween the parallel portions of the side members 10 andi A11of the chassis and o f a4 width considerably lessthan the* distance between said side members, is lo cated'the engine frame B. This engine .frame consists of two parallel structural' members ,29 and' 30 spaced aproper distance apart aand connected by cro'ss ystrlictural members 31 and 32. AtA the rear end of this engine frame are arranged converging struc# tural melnbers 33'am1 33, joined together mcdially of the width oftlie'frame,-aml the purpose nf which is to form a support for the flansmission, or typical type of gear box (i.

Located under the side frames 29 and 3() of the engine frame, are blocks 34, under. which thereare located leaf springs, preferahly of the semi-elli] tical type, 35, which springs are fixed to the side frames by U- shaped heavy clips 3,0. The opposite ends, or the eyes of these springs are fastened to forked arms v3.7 and 37 by pins 38 and 39 The upper end of the forked arms and 37 are engaged by rods 40 and 41, which rods'extend the full width of the chassis frame, and are supported thereunder by brackets 12 ami/12. .Referring now to Fig. 5 which indicates the usual type of differential case, from which emanate in oppositely extendingl directions, the main driving shafts 50 and 50. which edly attached to the gear differential .box H before mentioned. It will therefore be seen that the entire rear end lof the truck is ri 'dly or unyieldingly mounted upon the vvlgiieels 60 and 60, the collars 53 and 53a are fixed to the shafts 50 and 50l adjacent the 4boxegasjl and 51*.to prevent outward move- I mentoftheishafts 50 and' 5 0in.' a-r'nanner readily comprehended.

Provided at'theiforwardfcorriersaof the differential box H atthe shaftieyel thereof, are oppositely located' lugs or projections 60 and 60, to whichare fastened diagonal rods or bars G11-and 61., the opposite ends of which are fastened 'to the frames 10 and 11 by rivets or other means 62 and G2, whereby a rigid construction eitherv in tension or colmpression is.arran,e'e ;d..

vThe engine EE is located upon theengine base B in thepusual'rnanner and-its .shaft therefrom is `passed through the fear box 'i G. At the rear of the gea-r box (itliere is 'located a universal coupling 70,* connected to the drive, shaft. 71; attheA rear end 'of which is another universal. coupling T2, which-com )lingrI connects with the'shaft 73,'

entering,r thegdifferential box'Hfthe details of construction within wliichuniaybe of the usual typeand has no lpart-in my inventii'in.

The extreme rigidity of the rear end of the chassis is now referred to, and it will be noted that the load'on thechassisu'ill not have the tendencyzto create a` universal- Yibration thereof. Furthermore there will he no tendency` to the widening apart of the chassis at the reaiyend thereof., lf one o r the other of the rear wheels" if() or G0" have been depressed, due to a sunken .spot on vthe road,v the stiffnessof construction ofthe chassis'4 will assist wonderfully in. enabling thcv motor to pull .thevehicleiback on lsolid 'ground owing t'o the fa'ct that thefull energy of` the motor is being usefull;l ex# pended, this feature xs an extremely important one- Attention is now called to the operation l of my vehicle, a. ssurnin,{g it to'be traveling along a road when at once the' forward wheel drops into a rut or depression. ln as much as the wheel and its supporting mechanism is centrally and. oscillat'ablv mounted on the'bracket 15, itwill be seen that the front of the chassis frame will remain ina horizontal position," as will, the cnginc frame B. horizontal and :ulj||stin;5"itself 'to the peculiar conditions. the enginenwill he operating noru developing jitsfrn'tirc cnwgy tow; fiaavard niorfeiwut of the 'lllc engine frame remaining vehicle through the .shaft Y() in an evident manner. 1t will he observed that no matter hat the conditions may be. whether the front wheelS are depressed or raised. or the rear wheelsA depressed or raised. the engine is alrfaya in normal position. and is there fore able to exert its entire force of energy ir. a )noyer inguiner. because of being free troni any trees-e; or #trains which would rmlnre its etl'ectix'e energy.

in l" n l .liseloae a new forni of differential a and chassis connections. which ill la wane the preferred forni of construcoi employed in very heavy trucks. In emistrnetion. the ditl'erential box is formed of tno like halves 'l and I', held together by lng# lll() and bolts 153 pasing lh'uirrtiing outwardly from the SideeL of rh of the halvea 1 and l of the differential on opposite sides of the Shaft o() or 31" ard van, integrally with their respective il l lrffes. are ontwardlr extending arlnS 52h.

remove from the interior of `the box any nt" the gears it is defnred ',to take ont at any timeA In Figa. Jl and 10 are disclosed the collars employed adjacent the inner face of the journal box .311 thin collar is made in two halves Fill and 315 and is bolted together by boli 53.". yThe interior of this collar is con-- renal in the hanne manner as the shaft 5() is convivial at tha*L point, so that said collars are innnomble zo long as the bolts 53 are kept tight.

ln lfig. T 1 indicate a universal ioint snpport tor the spring* 17 at the front end of liana-ia, lpon the forward cross meinlrer 1'2 of" the chassis. and centrally of the width 'of the chassis. ia maintained a base 10U. tta'ininatimf in an outwardly or forwardly extending spherical member 101. Renting upon the upper portion of this member a hraehet 102. and embracing the lon er part of the Spherical member 101 is a rap 1'13YV which iS fastened to the member 10:? by holte 107. passing therethrough. 'It is now pointed out that there are leftLo}')enings at the rear end as 10', and at the sides aS well so as to permit of the lateral as Well as longitudinal oscillation of the springs 17.

l now eall attention to the fact that I will in heavy trunk@ extend the chassis vframe bars 10 and 1l a matter of a few feet bevond the preiaent location, leaving the transmission shafts and appurtenances 1n their mn as a dead axle, having its n'heele'. will have sprocket heels over which and the ehatta ."il P l 5U will be trained sprocket chains. atrnctnre is well within the spirit nl my inwniion, and :.laiin it as Snell.

l hae hereinlieefore dirli'iijed the preferred inode of practiaing my invention,V but Iv reserve the righi to malte auch and" any changes; as might occur to one skilled in the art to which this invention appertains. or to :natie an): and all sach alterations a ma); he permitted ander the doctrine. of eonfalent".

deaerihei'l my invenl deene kto secure .tent of the United 1. A track frame including longitudinal side members1 transve members connect ing the rear end ot' Said side members, there beingr interposed between said transverse members a differential gear box. wholly Supported bv tid transverse diagonal ln aanneming said gear box and Side nienilara and rear drive Shafts located below said traimyerse members, journaled under aid side members, and Within Said gear bor-f. said drive Shafts having rear drive wheels at the free ends thereof.

members,

Q. 1n a truck.. a .trame including longil themnaverae member, and i diagonally extending hraee oars connected' at their rear extremitiesv to the gear box and at their `liront ende to the side members.

3. An anto track cominiaing a main frame having longitudinal side members,'a transverse front member connecting Vsaid side members at the front end thereof, transverse members rigidly connecting the re'al ends of said side members. therey being interposed between said transverse mmev bers a ilillerental box. wholly *Supa ported by said transverse members, drive shafts located below said transverse mem.- bers, jonrnalled Aunder sind side members,

and Within said gear box, and ldriving Wheels at the 'freoendsa of said shafts; a motor sub-frame located between Saidside members. near the front ends thereof, and, yieldingly supported rfrom beneath said side members, a motor on said sub-frame, po'wer transmission means wnnectmgksqd motor and said dilerential,gym:l

ay front axle and wheels in' eonnection'f'with said transverse front member. ,a

fl. An aotrrtruck comprising a main frame having longitudinal side members, a transl: front member connecting said ,side members at the front .end thereof, transverse members rigidly fonneeting the rear ends of said side members, there, be ing interposedbetween said transverse members a differential gear' box, wholly supported by said transverse members, drive shafts located below said transverse members', journaled under said side members, and Within Said gear boX. and drivinszwheels at the free ends 0f said shafts;

a motor sub-frame located between said side members, nearthe front. ends Feof, and, free for universal vibration between said side members,l and yieldingly supported fram beneath said side members, a motor on said subframe, power transmission means ,connecting said motor and said differential gear box, and a front axle and wheels in connection with said transverse front member.

In testimony that I claim the foregoing as` my invention, I have hereunto setI my hand.

.JOHN H. AUFDER HAAR. 

